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Paullinia bracteosaRadlk.

Radlk., Bull. Herb. Boissier, sér. 2, 5:321.1905

Liana; young stems 5-sulcate, the older stemswinged, the wings 3, broad, corky; sap milky; stems, petioles, andrachises bearing sparse long pubescence. Leaves pinnate; stipulespaired, lanceolate, 2-4 cm long, to 1.5 cm broad, minutelypubescent, often persistent, ciliate; petioles, ra­chises, andblades ciliate; petioles to 22 cm long, winged; rachis winged;leaflets 5, ± elliptic, acuminate, acute at base, 8-30 cmlong, 4-12 cm wide, glabrous above but with pubescent midrib andprincipal veins, glabrate to hispidulous all over below, crenateabove the middle. Thyrses dense, arranged ± densely on strong,slender, densely rufous, bracteate, axillary inflorescences;flowers white, 4-7 mm long; sepals 5, unequal, suborbicular,concave, tomentulose, ciliolate (the largest to 5.3 mm long);petals 4, equaling or exceeding sepals, glabrous, the scalestwo-thirds to three-fourths as long as petals (± enclosedwithin concavity of petal), the margin and reflexed appendagemarkedly bearded, the crest promi­nent, orange, the glands ofthe anterior petals whitish, erect, flattened laterally, broaderthan high, pubescent especially at base; stamens 7 or 8; filamentsdensely vil­lous, to 3 mm long, held closely together aroundpistil; anthers dehiscing laterally; ovary bearded at base ofstaminate styles; styles 3, in staminate flowers short and reduced(held well below the anthers), in bisexual flowers 3-branched tobelow the middle, to 2.3 mm long, held well above the anthers, theunbranched part pubescent. Capsules ellipsoid to turbinate, 3-5 cmlong, rounded to subcordate and apiculate at apex, tapered to base,terete to broadly 3-sided, striate, puberulent to glabrous; seedsolitary, to 2 cm long. Croat 4814, 5363.

Occasional, on the shore and in the forest; seedlings common.Flowers from the early dry to early rainy sea­sons (Decemberto August), with the fruits maturing mostly from February toAugust.

The fruits are perhaps tardily dehiscent-an opened capsule israrely seen.

Costa Rica (Atlantic slope and the Osa Peninsula)south to Venezuela and the western and south-central parts of theAmazon basin from the Rio Madeira in Brazil to Peru and Bolivia. InPanama, known from tropical moist forest in the Canal Zone, Bocasdel Toro, San Blas, Chiriqui, Los Santos, Panama, and Darien.

See Fig. 341.

Images
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa capsule
Steven Paton
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa flower-bud
Steven Paton
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa Inflorescence buds
Steven Paton
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa immature-fruit
Steven Paton
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa immature-Infructescences
Steven Paton
Source:ESP
Paullinia  bracteosa
Paullinia bracteosa seed-dry
Steven Paton
Source:ROUBIK_POLLEN
Paullinia  bracteosa
Paullinia bracteosa
Enrique Moreno, David Roubik
Source:ROUBIK_POLLEN
Paullinia  bracteosa
Paullinia bracteosa
Enrique Moreno, David Roubik
Source:ANDRES HERNANDEZ
Paullinia  bracteosa
Paulinia bracteosa
Andrés Hernández
Source:CTFS
Paullinia  bracteosa
Paullinia bracteosa
Nefertaris Daguerre
Source:CTFS
Paullinia  bracteosa
Paullinia bracteosa
Nefertaris Daguerre
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